1.
renege on one's promise
违背诺言,破坏约定,食言
2.
I felt guilty after breaking my promise.
我违背诺言后感到内疚。
3.
We shouldn't rat on our promise.
我们不应该违背诺言。
4.
break/carry out/fulfil/give/keep/make a promise
违背诺言[履行诺言/实现诺言/给予保证/遵守诺言/作出允诺
5.
They knew full well that he would certainly break his promise.
他们完全知道他肯定会违背诺言的。
6.
You've betrayed my trust, eg told a secret or not kept a promise.
你辜负了我对你的信任（如泄露秘密或违背诺言）.
7.
That's just an excuse.You shouldn't have broken your word. If you ever break your promise to me again, I'll never talk to you.
那只是借口,你不该食言,如果你再次对我违背诺言的话, 我就再也不和你讲话。
8.
Once again he broke his words.
他又一次违背了他的诺言。
9.
We should not act counter to our promise.
我们不应违背自己的诺言。
10.
I'm sorry that I broke my promise.
对不起,我违背了我的诺言。
11.
If you make a promise you should keep it; you ought not to break your promise.
你如果做出允诺就得守诺言, 不应该违背它。
12.
The management agreed to raise the workers' pay, but they reneged on their word.
资方同意提高工人工资，但他们却违背了诺言。
13.
violate an agreement, oath, etc
违背协议、 誓言等
14.
We arranged it like that, and I do not want to break my promise in any way.
我们是这样约定的，我无论如何不能违背我的诺言。
15.
To break or disregard(a law or promise, for example).
违犯违反或藐视（如法律，诺言等）
16.
a witness who lied under oath;
违背誓言而撒谎的证人;
17.
I believe in the sacredness of a promise, that a man's word should be as good as his bond, that character-not wealth or power or position- is of supreme worth.
我相信诺言神圣不可违背，君子出言当如立约。惟此一念至高无上，金钱、力、位皆不可与之并论。
18.
But the U.S. government broke its promise completely, refused to withdraw its troops and stepped up its interference in China's internal affairs.
但美国政府却完全违背了自己的诺言，拒不撤走自己的军队，并且变本加厉地干涉中国内政。